Spool and holder therefor



Nov. 7, 1933. R. ELssNER Er AL 1,934,176

SPOOL AND HOLDER THEREFOR Filed April 27, 1952 Eiqll00000000000d0@00000000000000; 000000000000005 2 v 5 g +\I3 IQQQQQQQQQQQQQQ,egeeeesceeeeea 57 gwuemto@ i v'. "ON

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Patented Nov. 7, 1933 1,934,176 SPOOL AND HOLDER THliJItEIF'OR` RichardElssner and Ralph H. Carter, Johnson.

City, Tenn., assignors Corporation, New York Delaware to AmericanGlanzsto N. Y., 'a corporationof Applicaties April 27, 1932. seriall No.607,853

` 7 Claims. v (131.2427118) Our present invention has to do with a newand novel spool for use in the wet-treatment and drying of filaments. I,l V One object of the present y,invention is to pro- 5 vide acollapsible spool which aids in the production'of laments with a moreeven shrinkage. Another object is to provide a collapsible spool whichmay be rotated'horizontally and used as a take-up spool. V In themanufacture of artificial filaments by the wet spinning process, forexample, from a viscose solution, the formed filaments pass from asetting or precipitating bath to a spool upon which they are wolmd.These spools are usually cylindrical and perforated in order that apres-- sure or vacuum washing process may be followed. The filamentswhile on this spool are deacidied; desulphurized, bleached, washed, anddried. Usually, in drying on a rigid spool, great differiences in`shrinkage between the inner and outer layers of the laments result. -Inorder to overcome this unevenness of shrinkage resulting from 'a rigidspool, collapsible spoolsmay be employed at this point ofthe process.The present invention; concerning such a type of spool is described asfollows: r Y

After the rst drying operation on the original spinning., spools' it' isusually Anecessary to twist the yarn thereon. During the twistingoperation the yarn is naturally transferred from one spool to another,andthe outside layers of the spinning Y .-spools'are transferred to theinside of the takeup spools on the twisting machine. In order to obtaineven shrinkage of the -yarn on the take-up spool, a collapsible spool asshown on the attached drawing may be employed. After the twistingoperation this spool isremoved from the cylindrical spJol holder,moistened by any suitable means, and redried from the inside of -40 thespool.

As set forth in the accompanying drawing,

Figure 1 is a side elevation of the holder with the spool thereon, theoutline of the yarn being shown in dotted lines,

Figure 2 is a cross-sectional view taken through Figure 1, the yarnbeing shown upon the spool,

Figure 3 is a view similar to that in Figure v 2, with the holderremoved.

56 As shown in the drawing, the spool holder consists of a cylindricalportion 1, with a centrally located spindle 2. The central portion l isof a circumference sufficient to'v just fill the spool 3 when it is inexpanded condition. As shown in the drawing, the spool 3 consists of aper-L the cake 6. When drying this cake,- the holder forated shellportion with a plurality of longitudinal slotsl S. Six slots are shownin the drawing, byway of illustration. These slots S terminatealternately in slits running to the end of the spool (4, 4', 4") and (5,5', 5"). These slits 6o produce two sections of the spool which ,areflexed sothat they tend to overlap rather than meet one another. Asshown speoiflcallyin Figure 2, the presence of the holder 1 within thespool 3 tends to keep the edges of the slits 4 65 etc., and 5 etc., sothat they form meeting edges. When the holder is removed, the edges ofthese slits tend to overlap (Figure 3) and thus tend to reduce thecircumference of the spool.

In operation, a spool of stainless steel, or some resilient andresistant metal, is used. The empty spool is placed upon the holder andthe edges ci?- the slits are thereby caused to meeteach other. Thefilaments are then wound thereupon to form 1 is removed, and the meetingedges allowed to overlap. This reduces the circumference of the spoolsand allows the layers of filaments to dry properly in order that an'even shrinkage may result.

The' present spool may be used alone, as set forth, or in connectionwith the drying apparatus set forth in the copending application o fThomas H. Byron and one of the present applicants, Serial Number598,866, led March 14. 1932. 4gli Although the modification shownconsists of a spool with six slots therein, we do not wish to be limitedto this number. We further do not wish to be limited-to the exactmodification shown, otherwise than indicated by the following claims. 9o

We claim:

1. In a collapsible spool, a perforated shell portion, a series. ofslots running longitudinally of said shell, but of a length so that theydo not extend the full-length of the shell portion, each of said slotsterminating at the end of said shell, alternate slots terminating atalternate ends of the shell, said spool shell being of resilientmaterial so stressed that the terminating ends tend to overlap oneanother rather than meet 2. In a collapsible spool, a perforated shellportion,` a series of slots running longitudinally of said shell, but ofa length so that they do not extend the full length of the shellportion, each of said slots terminating at the end of said shell, saidspool shell being of resilient material so stressed that the terminatingends tend to overlap one another rather than meet.

3. In a collapsble spool, a perforated shell portion, alternate slotsterminating at alternateen 110 of the shell, said spool shell being ofresilient material so stressed that the terminating ends tend to overlapone another rather than meet.

4.-In combination, a rigid spool holder and a perforated spool, saidholder being practically the same length as th spool, and terminating inan extending lug, said spool comprising a perforated shell portion,slotted longitudinally by slots insufficient in length to extend thelength of the spool, alternate slots terminating at alternate ends ofthe spool, said spool shell being of resilient material so stressed thatthe end portions defined by the slots tend to overlap, said overlappingbeing prevented during the winding operation because of the presence ofthe spool holder, the removal of the spool holder, however, causing thesaid end portions to overlap and thus reduce the circumference of thespool.

5. In combination, a rigid spool holder and a perforated spool, saidholder being practically the same length as the spool, said spoolcomprising a perforated shell portion, slotted longitudinally by slotsinsuicient in length to extend the length of the spool, alternate slotsterminating at alternate ends of the spool, said spool shell being ofresilient material so stressed that the end portions defined by theslots tend to overlap.

6. In combination, a rigid spool holder and a tions defined by the slotstend to overlap, said overlapping being prevented during the windingoperation because of the presence of the spool holder.

'7. In combination, a rigid spool holder and a perforated spool, saidholder being practically the same lengthl as the spool, said spoolcomprising a perforated shell portion, slotted longitudinally by slotsinsuflicient in length to extend the length of the spool, alternateslots terminating at alternate ends of the spool, said spool shell beingof resilient material so stressed that the end portions dened by theslots tend to overlap, said overlapping being prevented during thewinding operation because of the presence of the spool holder, theremoval of the spool holder, however, causing the said end portions tooverlap and thus reduce the circumference of the spooLl RICHARD ELSSNER.RALPH Hr CARTER.

